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Gold Does Not React with Either Nitric Acid or Hydrochloric

Question 104

Multiple Choice

Gold does not react with either nitric acid or hydrochloric acid but with a combination of both called aqua regia.Identify the reducing agent in the following equation:
Au(s) + 4 H+(aq) + NO3-(aq) + 4 Cl-(aq) → [AuCl4]-(aq) + 2 H2O(l) + NO(g)


A) Au
B) H+
C) NO3-
D) Cl-
E) Au and Cl-

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